Improvement in ships  pumps



THOMAS BELL.

Ships P-umps..

N0.128,009. Patentedlune18g1872.

V///////////I//I/' A witmms: 311mm:

4/4 Marwur/mmum cowy, fosao/en/ss PROCESS) UNITED STATES PATENT QFFIGE.

THOMAS BELL, OF BELLPORT, NEW YORK.

\ IMPROVEMENT IN SHIPS PUMPS.

Specification forming part of Letters Patent No. 128,009, dated June 18, 1872.

Specification describing a new and useful Improvement in Ships Pumps, invented by THOMAS BELL, of Bellport, in the county of Suffolk and State of New York.

The object of this invention is to improve the means used for discharging water from ships, and for pumping water expeditiously in other situations; and it consists in a pump constructed as hereinafter described.

In the accompanying drawing, Figure l is a vertical section of Fig. 2 taken on the line or 00. Fig. 2 is a horizontal section of the pump on the line 3 y.

Similar letters of reference indicate corresponding parts.

A represents a rectangular-shaped box or cylinder, of any convenient size,accordin g to use or purpose to which the pump is to be applied. B represents the valves, each of which is hinged in a sliding box, 0. The boxes with the valves are moved back and forth by means of eccentrics D on the driving-shaftE, arranged as seen in Fig. 2. F are the eccentric rods,

- which extend in each direction from the shaft,

so as to connect with the valves, one on each side, as seen in the drawing. A reciprocating motion is imparted to the valve-boxes when the shaft is revolved, but the eccentrics are so arranged that the valve-boxes do not move in unison with each other. The valves may be hung at or near the top, or in any manner so that they open when moving in opposition to the flow of the water, and close when moving with the current, so that each valve serves to 'propel or force the water along in a continued current. In ordinary cylinder or piston pumps the momentum of the water is lost and its inertia has to be overcome at each stroke'of the piston. M y object is to overcome this difficulty;

and by constructing a pump upon the piston principle which shall raise and propel the water in an unbroken current, in the manner described, the object is accomplished. G represents the induction, and H the eduction or discharge pipe. This pump is placed athwart ships, so that the water may be discharged at the side of the vessel.

The motive power is applied by means of cog-gearing, or by a belt from the engine-shaft, as may be found convenient.

As above stated, the boxes 0 do not move in unison, and I arrange the eccentrics so that at least one of the boxes shall be making a forward movement-i, 0., toward the eductionport H-at all times when the pump is in use. In the present instance two of the boxes make their forward and backward movements very nearly simultaneously. Thus a continual and nearly uniform pressure is exerted onthe water in the case A, so that the stream entering and discharging is continuous and nearly uniform in velocity.

I do not confine myself to the precise form or arrangement of the parts described, as they may be varied in many ways without departing from my invention.

Having thus described my invention, I claim as new and desire to secure by Letters Patent A pump composed of the box or cylinder A, sliding boxes 0, valves B,driving-shaft E, eccentrics D, and eccentric rods F, arranged substantially as shown and described.

THOMAS BELL.

WVitnesses: I

OHAs. RILY SMITH, GEO. W. MURRAY. 

